Solute losses from various shoot parts of field-grown wheat by leakage in the rain

Debrunner, N.; von Lerber, F.; Feller, Urs (1999). Solute losses from various shoot parts of field-grown wheat by leakage in the rain. In: Martin-Prével, Pierre; Anac, D. (eds.) Improved Crop Quality by Nutrient Management. Developments in Plant and Soil Sciences: Vol. 86 (pp. 131-134). Dordrecht: Springer Netherlands 10.1007/978-0-585-37449-9_30

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Leakage from field-grown wheat was investigated during two seasons differing considerably in their rainfall patterns. For all solutes analyzed, these losses were low from non-senescing plant parts, increased after the onset of senescence and became maximal in fully senesced (dry, brown) organs. The cumulative losses of potassium by leakage in the rain were 65% of the content at anthesis for the flag leaf and 95% for the third leaf from the top, while these relative values were lower for magnesium (50 to 80%) and calcium (around 55%) and extremely low for sodium (<10%). The differences between potassium and sodium may be due to a different compartmentation on the tissue level or on the subcellular level. It became evident that for certain nutrients (e.g. potassium or magnesium) leakage in the rain may represent a major loss from senescing leaves and can be a relevant flux in maturing wheat.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant nutrition (discontinued)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Feller, Urs

Subjects:

500 Science > 580 Plants (Botany)

ISBN:

978-0-7923-5850-3

Series:

Developments in Plant and Soil Sciences

Publisher:

Springer Netherlands

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

13 Jul 2016 09:17

Last Modified:

09 Sep 2017 19:19

Publisher DOI:

10.1007/978-0-585-37449-9_30

Uncontrolled Keywords:

leakage; nutrient balance; potassium; rain; senescence; Triticum aestivum L.; wheat

BORIS DOI:

10.7892/boris.83566

URI:

https://boris.unibe.ch/id/eprint/83566

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